Analysis of WLAN Performance Depending on ARF Scheme with TCP and UDP Protocols
| Autor: | Min Lee, Nam Gi Kim, Hyun Soo Yoon |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Noise (signal processing)
Computer science business.industry Network packet Node (networking) ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Real-time computing Collision Transmission (telecommunications) Wireless business Degradation (telecommunications) Computer network Communication channel |
| Zdroj: | The KIPS Transactions:PartC. :395-400 |
| ISSN: | 1598-2858 |
| DOI: | 10.3745/kipstc.2005.12c.3.395 |
| Popis: | The IEEE 802.11b WLAN supports multiple transmission rates and the rate is chosen in an adaptive manner by an auto rate control algorithm. This auto rate control algorithm deeply affects the total system performance of the IEEE 802.11b WLAN. In this paper, we examine the WLAN performance with regard to the auto rate control algorithm especially the ARF scheme. The experimental results indicate that the ARF scheme works well in the face of signal noise due to node location. However, the ARF scheme severely degrades system performance when multiple nodes contend to obtain the wireless channel and the packet is lost due to signal collision. In addition, TCP prevent the performance degradation due to ARF scheme by retaining number of active nodes. However, some applications, such as transporting multimedia data, adopt the UDP. Therefore, the TCP cannot be an optimal solution for all WLAN applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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